Result of a 9200 RPM misshift w/ no rev limiter
Thread Starter
Honda-Tech Member
Joined: Jul 2002
Posts: 2,758
Likes: 2
From: northern, virginia, USA
My cousin sent me these pics. He misshifted his b16a at 9200 and he doesnt have a rev limiter.
on people with no rev limiter. The pics arent too good, but piston 1 is simply not there, its all in the oil pan and the rod is twisted, not bent, but twisted. Piston 3 also has a very large hole in it. 2 valves dropped in each of the two cylinders. Here are the pics:
[Modified by VTEC-DA, 6:02 PM 1/22/2003]
on people with no rev limiter. The pics arent too good, but piston 1 is simply not there, its all in the oil pan and the rod is twisted, not bent, but twisted. Piston 3 also has a very large hole in it. 2 valves dropped in each of the two cylinders. Here are the pics:
[Modified by VTEC-DA, 6:02 PM 1/22/2003]
wow! impressive ... i thought everybody was telling us how B16's are the ****'s with the rod ratio and stuff.. saying they can do 9k no problem... hmmm.......
i wonder what the the people who condone titanium retainers will say to this one...
hahahaha
i wonder what the the people who condone titanium retainers will say to this one...
hahahaha
Thread Starter
Honda-Tech Member
Joined: Jul 2002
Posts: 2,758
Likes: 2
From: northern, virginia, USA
He didnt know, well past 10k though.
As far as being at 9000k+, he is one of those guy who is convinced that even with stock cams, his car still pulls hard after 8500, so he keeps going.
[Modified by VTEC-DA, 6:08 PM 1/22/2003]
As far as being at 9000k+, he is one of those guy who is convinced that even with stock cams, his car still pulls hard after 8500, so he keeps going.
[Modified by VTEC-DA, 6:08 PM 1/22/2003]
Correct, a rev-limited would NOT have helped him.
If you grab the wrong gear, your tranny will spin your engine as fast as it wants.
Unless you mean mis-shift as in simply not going into ANY gear at all?
That sucks though.
If you grab the wrong gear, your tranny will spin your engine as fast as it wants.
Unless you mean mis-shift as in simply not going into ANY gear at all?
That sucks though.
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He didnt know, well past 10k though.
As far as being at 9000k+, he is one of those guy who is convinced that even with stock cams, his car still pulls hard after 8500, so he keeps going.
[Modified by VTEC-DA, 6:08 PM 1/22/2003]
As far as being at 9000k+, he is one of those guy who is convinced that even with stock cams, his car still pulls hard after 8500, so he keeps going.
[Modified by VTEC-DA, 6:08 PM 1/22/2003]
lol trial and error I guess
he is one of those guy who is convinced that even with stock cams, his car still pulls hard after 8500, so he keeps going.
Thread Starter
Honda-Tech Member
Joined: Jul 2002
Posts: 2,758
Likes: 2
From: northern, virginia, USA
There's quite a few ITR owners out there who do this. Shifting at 8,900 as if it's going to help anything.
wow! impressive ... i thought everybody was telling us how B16's are the ****'s with the rod ratio and stuff.. saying they can do 9k no problem... hmmm.......
I shift at 9k, safely.
There's quite a few ITR owners out there who do this. Shifting at 8,900 as if it's going to help anything.
yea one thing thats true... spectators never get injured. if you race your car you will eventually mis a shift accidentally into a gear and become yet another statistic of pride under fire. those pics look more like it failed under the influence of Nitrous/misshift. there is way too much detonation in the head quench area and tops of pistons to make me think otherwise. better luck next time
Seen that happen a few times with a stock rev limiter.... Those mis shift 1st, 2nd, 3rd, 2nd shifts can kill
Oh well scrap the B16 for a B18C... Peace
Oh well scrap the B16 for a B18C... Peace
There's quite a few ITR owners out there who do this. Shifting at 8,900 as if it's going to help anything.
i dont do it, i dont really run my car that hard, but i was under the impression that if you shifted higher then you could stay in vtec in the next gear and not drop out.
i dont do it, i dont really run my car that hard, but i was under the impression that if you shifted higher then you could stay in vtec in the next gear and not drop out.
Now maybe a celica on the other hand...
Ouch, that is one expensive mistake! My freind's bottom end kinda looked the same after he blew it up with his bottle.
i redlined 3rd went into 4th at least i thought is was 4th. turned out to be 2nd, saw my rpms go to 10k+ on a stock b20. the rev limiter doesnt exist whe you do something like this, even if you do have one, cause i did 
car was fine for a few weeks. but i musta slapped a valve on a piston which caused a slight crack on the valve cause this is waht happend
you cant really tell from the pic but pieces of the valve are melted to the stem.
bottom end was fine sort of. i found i was burning a lot of oil afterwards, about 2L a week.
the bottom end finally let go in november. it held up for about a year after the valve went. i'm guessing the rings went because i opened it up and it looked fine. no damage to the pistons or valves. compression was like 75 in #4cyl.

car was fine for a few weeks. but i musta slapped a valve on a piston which caused a slight crack on the valve cause this is waht happend
you cant really tell from the pic but pieces of the valve are melted to the stem.
bottom end was fine sort of. i found i was burning a lot of oil afterwards, about 2L a week.
the bottom end finally let go in november. it held up for about a year after the valve went. i'm guessing the rings went because i opened it up and it looked fine. no damage to the pistons or valves. compression was like 75 in #4cyl.
hey my sohc vtec (jdm) d15b (good r/s stroke ratio 1.62:1) has seen few 8500rpm+ runs.
rev limits have nothing to do with misshift. but running no-revlimit on stock car is simply asking for trouble.
rev limits have nothing to do with misshift. but running no-revlimit on stock car is simply asking for trouble.
I shift at 9500 all the time
......
Heck, I make my most power at 9200
......Heck, I make my most power at 9200


